I'm running into this same bug with kernel 4.18 currently in testing. [19865.977105] ehci-pci 0000:00:04.1: dma_direct_map_sg: overflow 0x000000010c723000+4096 of device mask ffffffff [19865.977113] ehci-pci 0000:00:04.1: dma_direct_map_sg: overflow 0x000000010c723000+4096 of device mask ffffffff [19865.977120] ehci-pci 0000:00:04.1: dma_direct_map_sg: overflow 0x000000010c723000+4096 of device mask ffffffff [19865.977127] ehci-pci 0000:00:04.1: dma_direct_map_sg: overflow 0x000000010c723000+4096 of device mask ffffffff [...]
* Can't read the USB key (or the sdcard). * No problem with kernel 4.17. * These messages are flooding logs eventually making disk full. Hardware infos: $ lsusb Bus 001 Device 003: ID 13d3:5130 IMC Networks Integrated Webcam Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub $ lspci -nn 00:00.0 Host bridge [0600]: NVIDIA Corporation MCP79 Host Bridge [10de:0a86] (rev b1) 00:00.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0a88] (rev b1) 00:03.0 ISA bridge [0601]: NVIDIA Corporation MCP79 LPC Bridge [10de:0aae] (rev b2) 00:03.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0aa4] (rev b1) 00:03.2 SMBus [0c05]: NVIDIA Corporation MCP79 SMBus [10de:0aa2] (rev b1) 00:03.3 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0a89] (rev b1) 00:03.5 Co-processor [0b40]: NVIDIA Corporation MCP79 Co-processor [10de:0aa3] (rev b1) 00:04.0 USB controller [0c03]: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa5] (rev b1) 00:04.1 USB controller [0c03]: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa6] (rev b1) 00:08.0 Audio device [0403]: NVIDIA Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1) 00:09.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Bridge [10de:0aab] (rev b1) 00:0b.0 SATA controller [0106]: NVIDIA Corporation MCP79 AHCI Controller [10de:0ab9] (rev b1) 00:0c.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac4] (rev b1) 00:15.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac6] (rev b1) 00:16.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac7] (rev b1) 00:17.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac7] (rev b1) 00:18.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac7] (rev b1) 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT216M [GeForce GT 320M] [10de:0a2d] (rev a2) 02:00.1 Audio device [0403]: NVIDIA Corporation GT216 HDMI Audio Controller [10de:0be2] (rev a1) 03:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet [1969:1026] (rev b0) 04:00.0 Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)
